Security Large Magnetic Hide-A-Key Holder for Over-Sized Keys - Extra-Strong Magnet Avoid expensive locksmith calls & never be locked out of home, office or car again Magnetic base grabs on to any ferrous metal (iron, steel) surface Easy to hide where only you can find it - under bumper, on frame or other metal object Rust-proof, tough & weather-resistant ABS case stays securely closed, protects key Made extra-large to accommodate modern multi-function keys, maximum 4-1/4"L x 1-3/4"W x 3/4"D